Steam-feed valve.



PATBNTED JUNE 23, 1903.

\ W. o. TROUT.

STEAM FEED VALVE.

APPLIOATIGN FILED DBO. 26, 1902.

2 SHEETS-SHEET 1.

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ms uonms mms co. Pumumo.. wnsnmcon L l' No. 731,633.r

PATENTBD JUNBQS, 190s. w. o. TROUT. r STEAM FEED VALVE.

` APPLICATION FILED DEU. 26. 1902.

Z SHEETS-SHEET 2.

N0 MODEL.`

IME/mt; Wm; 025g@ No. r731,633.

UNITED STATES Patented June 23, 1903.

PATENT OEEIQE.;n

win-.TEE c. TROUT, or; MIEWAUKEE, wisconsin.

srncrific'nrioiv arming part of Letters Patent No. 731,633, dated June23, 1903."

` Application filed December 26, 1902. Serial Ne. 136,601. (No model.)

.To wlllvwhomvitgmay concern; Beit knownfthat I, WALTER @.TRO'UTyacitizen of the United States, V'residingat Milwaukee, inthe county of.Milwaukee and new and useful Improvements in Steam-Feed i feed valve inwhich there are combined-a `will more fully hereinafter appear.

State of Visconsin, have invented certain Valves, of which the followingis a specification.

This invention relates to that class of valves `which is provided with amultiplicity of openings by which steam is admitted to certainparticularly to the construction and arrangement thereof and itsconnection with steamfeed for saw or other mills by whicliciertaindefinite objects may be attained, all of which The principal object ofthis invention is to provide a simple, economical, and efticientcombined steamfeed and exhaustvalve. A further object of theinvention isto pro-` vide a steam -mfeedvalve and" arrange it in such manner'as toVprovide for safety incase of breakage and for the' drainage of thewater', oil, and condensed steam.V f f 7 l 7 Further obj ectsfoftheinventionwill `appear from an 'examiiiation4 of 'the drawings and thefollowing.` description and claims.

The "invention f consists principally in-a steam-feed valve inwhich'there'are combined a `valve-bodyjf provided with a cylindrical.`valve-bore extending therethrough and veri tically arranged therein, :apiston-valve arranged in such valveborefand normally snugly-fitting thesame'hso that whenn the valve is not in use it will be"`dificult tomcve,"but when the valve is in use the" expansion of the parts willrelease the piston and permit easy movement thereof.

The invention consists, further, in a steambody portion provided"withacylindrical valve-bore vertically arranged therein an ex` haustpassagedirectly under'such bore, a

steam-inlet on one side of and at right angles' t0 the" exhaust, and asteam-feed outlet on the opposite side from the inlet and at rightangles to the exhaust, and a piston-valve movably mounted in thecylindrical valvebore of the body portion normally tightly fittingthe""""stem when the parts are cold, but the body portion of which valveis expanded when in operation by theheat of the steam so -that thepiston-valve portion may be easily moved therein.

The invention consists, further and finally, in the features,combinations, and details of construction hereinafter described andclaimed.

In the accompanying drawings, Figure l is a side elevation of a portionof a steam-feed for sawmills, showing my improvements as they appearwhen attached to and used in connection therewith; Fig. 2, an enlargedvertical sectional elevation of a steam-feed Valve constructed inaccordance with these improvements, taken on line 2of Fig. 3, looking inthe direction of the arrow; and Fig. 3, a side elevation of themechanism shown in Fig. 2 looking at such mechanism from the `right-handside of Fig. 2.

easymovements of the valve portion, so that should the valve or anyother portion break vwhile in use it will drop to a safe position,`thereby shutting off the supply of steam and cutting off the exhaust.

` The principal object, therefore, of this invention is to provide asteam-feed valve having steam inlet, feed, and exhaust passages,

and fto so construct and arrange the same as lto obtain the advantagesabove set forth, all of which will more fully hereinafter appear.

f In constructing a steam-feedval've in accordance with theseimprovements I `makea body portion a of the desired siz`e,`shape',g'andstrength to withstand the strains and stress. incident to use and tohold the other parts in position.

a cylindrical valve-bore b, vertically arranged This body portion isprovided with therein and, extending therethrough and with anexhaust-opening c, arranged directly under and inline with thevalve-bore. The valvebody is further provided with a steam-inlet openingd at right angles-with the valve-bore and connecting therewith, and witha steamfeed opening f also arranged at right angles with the valve-boreand substantially opposite the steam -inlet opening and at right anglesto the exhaust. It will be noticed that while the exhaust-opening isimmediately under the cylindrical valve-bore and the steam inlet andfeed openings at right angles therewith the connection of the steam-feedopening with the valve-bore is slightly below that of the connection ofthe steam-'inlet opening with such bore.

In order to provide means for connecting the proper openings andpassages in the valvebody with each other and cutting oit' suchcommunication when desired a cylindrical pistonvalve e is provided andmovably mounted in the valve-bore. This pistonvalve is provided with 'anannular groove or passage g, which,

as shown in Fig. l, is immediately adjacent to the steam-inlet opening,but when the valve/is moved downwardly the lower bearing portion of suchpiston passes down into the exhaustopening, cuts voff the communicationof the exhaust with the feed-opening, and permits its piston-valveupwardly and downwardly, as occasion requires. This piston-valve tightlyfits the cylindrical valve-bore when the parts are in their normal orcold condition and requires some force to move it; but when the partsare in use-that is, when the steam is supplied to or passing throughsuch valve-the valvebody becomin heated expands more than the pistonvalve and permits such valve to be moved easier than otherwise. Thelower bearing portion of the piston-valve is provided with a pluralityof circumferential grooves k, arranged to be filled with water ormoisture and form liquid or water packing.

To operate the valve-stem,and thereby the piston-valve, the valve-bodyis provided with a cap portion l, secured thereto so as to close theupper part of the valve-bore, and such cap is provided with astuflingbox m, through which the valve-stem passes. It is furtherprovided with an arm or bracket n, to which a bellcrank lever o ispivotally attached. This bell-crank lever by means of a link 19 ispivotally secured to the valve-stem, so that as it is swung in onedirection or the other the valve -stem is operated upward and downward.The bell-crank lever is provided with `a split clip or clampq, pivotallysecured thereto and adapted to be secured or clamped to a tubularoperating-rod r,whose rectilinear motions are used to operate thebell-crank lever, and thereby the valve. The valvebody is provided withiianges s, to which an inlet-pipe t is secured, a lange u, to which anexhaustpipe e is secured, and an elbow fw, to which a feed-pipe @c issecured,which is connected with the cylinder y of a steam-feed forsawmills, all of which flanges are bolted to the valvebody, as shownparticularly .in Fig. 2.

In Fig. 1 I have shown the parts as they appear when in position foruse, two of these steam-feed valves being shown, one for each end of thesteam-feed cylinder for sawmills. In such figure both of the steam-inletpipes t are connected with a main inlet-pipe awhich, in turn, isconnected with a-source of steamsupply.

The principal advantages of a valve constructed in accordance with theseimprovements are that the expansion feature permits the-valve to beoperated very easily during its use, and the vertical arrangement ofthepiston-valve permits an easy drainage of moisture, condensed steam,and oil, as well as permitting such valve to drop down, should thevalve-stem or part of thevalve become broken, to a safe position, all ofwhich will be understood and appreciated by those skilled in the art.

- I claim- 1. In a steam-feed valve of the class described, thecombination of a body portion provided with a cylindrical valve-borevertically arranged therein, an exhaust-passage directly urder suchbore, a steam-inlet on one side of and at right angles to the exhaustand a steam-feed outlet on the opposite side4 from the inlet and atright angles to the exhaust, and a vertically-movable piston-valvemovably mounted in the cylindrical valvebore of the body portionnormally tightly tting the same when the parts are normal or cold butwhich in operation by the heat of the steam-supply are expanded so thatthe valve-piston may be moved easily, substantially as described. c

2. In a steam-feed valve of the class described, the combination of abody portion provided witha cylindrical valve-bore vertically arrangedtherein, an exhaust-opening immediately under the cylindrical bore, asteam-inlet at one side of the body portion at an angle to thevalve-bore, a steam-feed'opening on the opposite side from thesteam-inlet also at an angle to the valve-bore, a verticallymovablepiston-valve movably mounted in the cylindrical bore of the valve-bodyand intercepting all of the above-named openings to open and close thesame and provided with an axial passage or passages to balance thevalve, and a valve-stem secured to the movable valve and extendingupward and outward therefrom, such valve-piston normally tightly iittingthe valve-body when the parts' p scribed, the combination of avalve-body provided with a cylindrical valve-bore vertically arrangedtherein, an exhaust-'opening directly under and in line with such bore,a steam-inlet IOO IIO

opening at right angles to such bore and opening into the saure; asteam-feed opening also at right angles to such bore and opening intothe same, a pistonvalve normally tightly fitting and movably mounted insuch bore and arranged when the parts are in use and by the expansion ofthe valve-body to be easily moved therein and provided with an axialopening extending therethrough having yspider portions extending acrosssuch opening, a valve -stem extending upwardly and outwardly from thepiston-valve, a valve-cap on the valve-body provided with a stuffing-boxthrough which the valve-stern is passed and Aa bracket portion thereon,and a bell-crank l lever pivotally secured in the bracket and with thevalve-stem to operate the latter, substantially as described.

4. In a steam-feed valve of the class described, thecombination ofavalve-body portion provided with a cylindrical valve-bore verticallyarranged therein and extending therethrough, an exhaust-opening directlyunder in line with and connected with the stem connected with suchpiston-valve and extending upwardly and outwardly therefrom, and abell-crank lever for operating such valve-stem, substantially asdescribed.

5. In a steam-feed valve of the class described, the combination ofavalve-body provided with a cylindrical valve-bore vertically arrangedtherein and extending therethough, an exhaust-opening directly under inline with and connected with the bore, a steam -inlet opening at rightangles to and connected with the valve-bore, a steam-feed opening atright angles to and connected with such bore, a piston-valve normallysnugly fitting such bore when the parts are cool but eased when theparts are heated during use and provided with a circumferential groovesubstantially midway between the ends of the valve to provide aconnecting passage between the steaminlet and steam-feed, the lower partof such valve-piston arranged to open and close the passagebetween thesteam feed and exhaust openings, such valve-piston having an aXialopening therethrough and provided with two spider portions extendingacross the same, a valve-stem detachably secured to such spider portionsextending upward and outward from the valve, a valve-cap provided with astuffingbOX through which such valve-stem is passed, an arm or bracketportion on such valve-cap, and a bell-crank lever pivotally secured insuch bracket portion and with the valve-stem for operating the latter,substantially as described.

WALTER C. TROUT. Vitnesses ALBERT Herrin, W. L. HUGHES.

